Why was the Judge so crazy and mad?

Yeah I don't know either, maybe the Scoleri brothers tried to kill him when they were still alive and drove him nuts!

I assumed maybe the slime had some effect on him?

If not, then he's just a wacky nasty jaded judge.

The Judge has been a hardass/jerk his whole career. He's always harsh and tough on people which is why he's nicknamed the Hammer. Good thing the Ghostbusters had that jar of mood slime at their trial.

He was still upset that Tony Montana shot him in the stomach.

At sunrise, the Black Fortress will appear in the Iron Desert.

I agree. Saying that vandilism is a crime worthy of being put to death for is pretty extreme. So is suggesting that they should start burning people at the stake again.

"I'll be back!" The Terminator